Maesobotrya oligantha O.Lachenaud & Breteler, sp. nov., a new species endemic to the Crystal Mountains (Equatorial Guinea and Gabon) is described and illustrated. It is close to M. pauciflora Pax in having very reduced inflorescences, but differs in its hirsute leaves with rounded or subcordate base, and its female flowers with three stigmas. From M. cordulata J.Léonard, which it resembles in the vegetative state, it differs in its much shorter axillary inflorescences and its shorter petioles.